Lead optimization of the VU0486321 series of mGlu1 PAMs. Part 3. Engineering plasma stability by discovery and optimization of isoindolinone analogs
作者:Pedro M. Garcia-Barrantes、Hyekyung P. Cho、Anna L. Blobaum、Colleen M. Niswender、P. Jeffrey Conn、Craig W. Lindsley
DOI:10.1016/j.bmcl.2016.03.031
日期:2016.4
This Letter describes the further lead optimization of the VU0486321 series of mGlu(1) positive allosteric modulators (PAMs), focused on addressing the recurrent issue of plasma instability of the phthalimide moiety. Here, we evaluated a number of phthalimide bioisosteres, and ultimately identified isoindolinones as the ideal replacement that effectively address plasma instability, while maintaining acceptable mGlu(1) PAM potency, DMPK profile, CNS penetration and mGluR selectivity. (C) 2016 Elsevier Ltd. All rights reserved.